Ignition-timer.



W. KAISLING.

IGNITION TIMER.

APBLICATION FILED luLY 21. |913.

Patented June 22, 1915.

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application med Jury ai, rais. semi no. 780,141.

To all whom/it may concern.z

Be itA known that I, WILLIAM KAISLING, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ignition- Timers, of which the following is a specification.

My invention relates to ignition timers and has for its object the provision of an improved device of this order in which means are provided to adjustably mount variousparts in such a way that a permanent adjustment of certain elements may be readily secured.

In a form ofimy invention as illustrated herein l have a contact element which is adapted Periodically to control an ignition circuit o an explosive engine, for instance. This contact element is adapted for periodic actuation by means driven from the engine shaft. Suitable devices are interposed by means of which the contact controlling means aforesaid may be under the control of theoperator thus to advance or retard the time at which this contact is to be made with relation to the angular position of the driving element.

y My present invention concernsitself for providing additional means of an adjustable nature for mounting the contact controlling meansso that a permanent adjustment, depending upon the character of the engine may be secured. It is found that in all l.of these vengines certain characteristics of the engine control the time at which nor mally the spark should occur. This normal sparking time may then be varied depending u on circumstances in the case of operation of) the engine by the interposed devices above referred to. As stated, however, each engine must have the contact making means for the particular kind of engine or possibly the particular kind of service it may be called upon to perform, or possibly depending upon the quality of the gasolene. y p

My invention concerns. itself therefore with the provision of the adjustable mounting facilities for securing a permanent ad justment of the contact controlling means. will explain my invention more in de: tail by referring to the accompanying drawing in which:

Figure 1 is a top view of an ignition timer constructed in accordance with my invention; Flg. 1s a longitudinal sectional view thereof; F 1g. 3 isa sleeve for holding the 'contact controlling cam; yFig. 4 is an end view of the same; F ig. 5 is a sleeve used for advancing or retarding the spark; Fig. 6 is a sectlonal view of the vlower portion of the sleeve shown in Fig. 3, and Fig. 7 is a screw for forcing elements of my device together. Referrlng more particularly to Fig. l, I have two contacts l and 2, the contact l belng stationarily mounted upon an insulated binding post 3, and the contact 2 be ing carried by a Yieirible sprin 4. The spring 4 in conjunction with a (giirectional element 5 are adapted to be periodically moved outwardly through the agency of a cam 6, which cam is xedly. secured to a sleeve 7. rlhe sleeve 7 receives its rotational effort from the driving shaft of the engine through the interpositioncf various instrumentalities as will presently appear. Whenever the protrusions upon the cam 6 engage the element 5 contact is established between the contact elements 1 and 2 to thereby close or otherwise control an ignitionl circuit for the explosive engine. The sleeve 7 is carried by a second sleeve 8 upon which it is adjustably mounted in accordance with the structure of my improved desi n, as will be explained hereinafter.

he sleeve S as stated receives its driving force from a shaft 9 and transmits it to the element 7 By means of the slots 10 and 11 in the sleeve 8 and the transverse pin 12 the particular angle of the sleeve 8 relative to the shaft 9 may be controlled as the pin 12 is moved along the slot 13 in the titl;

shaft 9. My invention is not concerned with y this particular feature, it being sufficient merely to state that the devices thus far deiscribed in connection with the sleeve 8 provide facilities for advancing or retarding the time of spark, which change may be made during continuous operation of the engine. Now as before stated` it is of prime importance that the normal time when this spark should occur with the in l2 in a given position be susceptible of a justmcnt in accordance with the characteristics of the particul'ar engine, and this adjustment must be made after the parts are all assembled in order not to change the characteristics of the engine. Means must thus be provided which will permit the sleeve 7 and thereby the cam 6 to be given a permanent adjustment after all the parts are assembled practically in the condition shown in Figs. 1 and 2. My invention provides this means and one form which this invention may take is shown in which the sleeve 7 has a downwardly vextending cylindrical element 14v which is provided with two slots at right angles, respectively 15 and 16, so that this cylindrical element 14 consists practically of four quadrants as shown. These uadrants 14 enter the sleeve 8 and then may 'e forced outwardly into intimate contact with the sleeve 8 through the agency of the screw 17 which has at its lowermost extremity a coneshaped portion 18. This cone shaped portion engages a correspondin ly inclined portion of the uadrant 14, an when the screw 17 is force downwardly into the position of Fig. 2 it forces the quadrants apart. The sleeve 7 of course as stated carries the cam 6. Now whenever it is desired to adjust the cam 6 to the permanent position to correspond with the characteristics of the engine, all that is necessary to do is to loosen the screw 17, whereupon the sleeve 7 may be rotated to the desired angular osition, whereupon the screw is then again ti htened to permanently adjust this sleeve in place upon the sleeve 8. The cam 6 is referably forced onto the sleeve 7 Aover a uted portion 19 thereof.

From what, has been described it is thought the nature of my invention will'be clear, and it will also be clear that the invention is susceptible of many modifications without departing from'itsspirit.

Having however thus described one form which my invention may take, what I claim as new and desireto secure by Letters Patent is:

1. A device of the character described comprising a shaft, an element driven by said shaft, means interposed between said element and said shaft to adjust the relative angular position between said element and shaft during rotation of said shaft, a contact controlling device, and means interposed between said element and said device to permanently adjust the relative angular position of said device with respect to said element with said parts all in assembled position, said last aforesaid means including a slotted sleeve and a wedge for forcing the slotted portions into engagement with said element.

2. A device of the character described comprising a shaft, an element driven by said shaft,'me'ans interposed between said element and said shaft to adjust the relative angular position between said element and shaft durin rotationl of said shaft, a contact control' in cam, and means interposed between said e ement and said cam to permanently adjust the relative angularposishaft durin 'tion of said cam with respect to said element with said parts all in assembled position, said last aforesaid means including a spiral sleeve and a wedge for forcing the spiral portions into engagement with said element.

3. A device of the character described comprising a shaft, an element driven by said shaft, means interposed between said element and said shaft to adjust the relative angular position between said element and shaft during rotation of said shaft, a contact controlling device, and means interposed between said element and said device to permanently adjust the relative angular position of said device with respect to said element with said parts all in assembled osition, said last aforesaid means including a sleeve for said device having a slotted portion and a. wedge for forcing said slotted portion into engagement with said element.

4. A device of the character described comprising a shaft, an element -driven by said shaft, means interposed ybetween said element and said shaft to adjust the relative angular position between .said element and shaft durin rotation of said shaft, a contact control in cam, and means interposed between. said element and said 'cam to permanently adjust the relative angular position of said cam with respect to said element with said arts all in assembled position, said last a oresaid means includin a sleeve for said cam having a slotted ortlon and a wedge for forcing said slot portion into engagement with said element.

5. A device of the character described comprising a` shaft, an element driven by said shaft, means interposed between said element and said shaft to adjust the relative angular position between said element and rotation of said shaft, a contact contro ing device, and means in ter.- posed between said elementand saiddevice to permanently adjust the relative angular position of said device with respect to said element with" said parts all in assembled position, said last aforesaid means including a sleeve for said device having a slotted portion and a wedge having screw threaded engagement with said sleeve fo'r forcing `said slotted portion into engagement with said element.

6. A device ofthe character described comprising a shaft, an element driven by said shaft, means-interposed between said element and said shaft to adjust the relative angular position between said'element and shaft during rotation of said shaft, a contact controllin cam, and means interposed between said e ement and said cam to permanently adjust the relative angular position of said cam with respect to said element with said parts all in assembled position, said last aforesaid means includin a sleeve for said cam having a slotted portion and'a Wedge having screw Athreaded. engagement with said sleeve for forcing said slotted portion into engagement with said element.

7 An-.ignition timer comprising an opera ting sha ft, al contact operating cam therefor, a second shaft operatively related to the first shaft and having said cam securely attached thereto, and coperating expanding and expansible elements for said shafts for permitting adjustment of the angular relation of said shafts so as to provide a definite angular relation between `said cam and first shaft.

8. An ignition timer comprising an operating shaft, a contact operating cam therefor, a second shaft having said cam securely attached thereto, an expansible extending element carried by said second shaft for insertion within an opening in the end of said tirst shaft, and an expanding element coperating with said extending element for adjusting said second shaft angularly relative to the first shaft so as to provide a definite alrligplar relation between said cam and first s a t.

9. A device of the character described comprising a shaft, means adapted for providing a second shaft for driving the first said shaft, means for adjusting the relative angular position of such shafts while operating, a Contact operating cam, a third shaft ha.v ing said cam securely attached thereto, an extension carried by said third shaft for inl sertion within an opening in the end of the second said shaft, and means for adjusting said third shaft angularly relative to the second shaft so as to provide a permanent angular relation between said cam and second shaft.

Signed by me at Chicago, county of Cook and State of Illinois, 1n the presence of two witnesses.

WILLIAM KAIS'LIN G. Witnesses M. R. RocHFoRD, GEORGE E. MUELLER. 

